Europe is getting a cybercrime alert system as part of a European Union drive to fight online criminals.

According to plans, European law enforcement body Europol will receive 300,000 euros ($386,430) to build an alert system that pools reports of cybercrime, such as online identification and financial theft, from across the 27 member states

I guess that such projects can be considered as a positive things, even if i have some doubts about its total efficiency (the most part of the job must of course be done "on the ground").

More than technical, the main limitation and obstacle are liability and jurisdiction dilemma.
With the FBI CIPAV and the Timberlinebombinfo affair, policewares are a mature technology, and much more official than in the past.
Some RFS ( Remote Forensic Softwares) are highly sophisticated, often with rootkits and firewall/IDS bypassing/eluding methods (but it is a confidential and UNnoisy market).
And such projects are planned in many Europeans countries, not only Germany with the Bundestrojaner.

More over, most cyber criminals are familiar with security, and anti-policewares countermeasures can be applied without the need of a solid background ( some anti-CIPAV tutorials can easily be found via a Google search)...
And high skilled criminals have off course an arsenal of technologies, material and jurisdiction protections to avoid any kind of tracking...

Would some AV editors collaborate with government security agencies by database withelisting/excluding this policeware ?
As it was the case in the past with Symantec/Norton and the FBI/Magic Lantern?
If Europol or any other cybercop alliance use " legal hacking and intrusion" against a cybercriminal located in a russian or chinese admimistration office, would this be considered as computer espionnage or cyber attack ?

But i concede that it is a complex subject: the DoJ of most democratic countries should find the well balanced way that will give enough rights to law enforcement agencies for doing their job, and on the other side, limits privacy intrusions and law abuse.

For those interested, there is paper by L. Grunwald and presented this year at Blackhat wich is good summary (sorry, direct download): "Hacking and injecting federal trojans"
(all anti-forensics methods and policewares countermeasures
have not been listed).
For example, using Voip encryption like Skype against eavesdropping is well known.
And as an anti-anti-forensic method, some chinese governement agencies have put on various download servers buggy/unprotected versions of Skype...
And if "Someone in particular" is afraid of evidences gathering on hard disk, he just needs to use a LINUX LiveCD ( i am particularly a fan of Protech), but this countermeasure is not a real obstacle